CVE-2003-0252

Exp

Off-by-one error in the xlog function of mountd in the Linux NFS utils package (nfs-utils) before 1.0.4 allows remote attackers to cause a denial of service and possibly execute arbitrary code via certain RPC requests to mountd that do not contain newlines.

Published: 2003-08-18 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2003-0252 is rated High Exploit Risk (87.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 15.78%, 96th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2003-0252

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2003-0252

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 16.11% 15.78% -0.32%
2 2025-07-07 21.76% 16.11% -5.65%
3 2025-03-30 — 21.76% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-0252

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2003-0252

OS Trackers for CVE-2003-0252

vendor priority summary link
debian not yet assigned CVE-2003-0252 not yet assigned priority: Debian including 1 source packages (nfs-utils), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2003-0252
redhat high — https://access.redhat.com/security/cve/CVE-2003-0252

Affected software / configurations for CVE-2003-0252

Vendor Product Version Raw CPE
linux-nfs nfs-utils < 1.0.4 cpe:2.3:a:linux-nfs:nfs-utils:*:*:*:*:*:*:*:*

References for CVE-2003-0252

URL Tags
http://archives.neohapsis.com/archives/vulnwatch/2003-q3/0023.html Broken Link Vendor Advisory
http://archives.neohapsis.com/archives/vulnwatch/2003-q3/0024.html Broken Link Vendor Advisory
http://isec.pl/vulnerabilities/isec-0010-linux-nfs-utils.txt Exploit Third Party Advisory
http://marc.info/?l=bugtraq&m=105820223707191&w=2 Exploit Mailing List
http://marc.info/?l=bugtraq&m=105830921519513&w=2 Mailing List Patch
http://marc.info/?l=bugtraq&m=105839032403325&w=2 Mailing List
http://secunia.com/advisories/9259 Broken Link
http://securitytracker.com/id?1007187 Broken Link Third Party Advisory VDB Entry
http://sunsolve.sun.com/search/document.do?assetkey=1-77-1001262.1-1 Broken Link
http://www.debian.org/security/2003/dsa-349 Broken Link
http://www.kb.cert.org/vuls/id/258564 Third Party Advisory US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2003:076 Third Party Advisory
http://www.novell.com/linux/security/advisories/2003_031_nfs_utils.html Broken Link
http://www.redhat.com/support/errata/RHSA-2003-206.html Broken Link
http://www.redhat.com/support/errata/RHSA-2003-207.html Broken Link
http://www.securityfocus.com/bid/8179 Broken Link Third Party Advisory VDB Entry
http://www.turbolinux.com/security/TLSA-2003-44.txt Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/12600 Third Party Advisory VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A443 Broken Link
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